查看“Wvdial拨号上网”的源代码

*安装wvdial:
 sudo apt-get install wvdial
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*配置wvdial.conf指令:
 sudo nano /etc/wvdial.conf
*电信或移动卡修改内容如下：
 [pialer Defaults]
 Init1 = ATZ
 Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
 Modem Type = Analog Modem
 Baud = 9600
 New PPPD = yes
 Modem = /dev/ttyUSB2
 ISDN = 0
 Phone = *99#
 Password = card
 Username = card
*联通卡修改内容如下：
 [pialer Defaults]
 Init1 = ATZ
 Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
 Init3 = at+cgdcont=1,"ip","uninet"
 Modem Type = Analog Modem
 Baud = 9600
 New PPPD = yes
 Modem = /dev/ttyUSB2
 ISDN = 0
 Phone = *99#
 Password = card
 Username = card
*修改完成后，按Ctrl+X保存并退出。
*后台运行wvdial:
 sudo /usr/bin/wvdial&
[[File:sim7600CE-16.jpg|800px]]
*关闭wvdial，先找到相应的进程号，然后退出该进程:
 ps -A
 sudo kill 499
[[File:sim7600CE-17.jpg|800px]]
*设置开机自动运行：
 sudo nano /etc/rc.local
*编辑rc.local脚本，在exit0前面插入指令，然后Ctrl+X保存退出：
 /usr/bin/wvdial&